Implemented velocity RedisBungee support

Added ProxioDev fork of RedisBungee as dependency to Velocity

Affects issues:
- Close #2620

Plan/build.gradle

@@ -79,6 +79,7 @@ subprojects {
         bungeeVersion = "1.16-R0.4"
         velocityVersion = "3.0.0-SNAPSHOT"
         redisBungeeVersion = "0.3.8-SNAPSHOT"
+        redisBungeeProxioDevVersion = "0.7.3"
 
         commonsTextVersion = "1.9"
         commonsCompressVersion = "1.21"
@@ -112,9 +113,10 @@ subprojects {
         maven { url = "https://papermc.io/repo/repository/maven-public/" } // Paper
         maven { url = "https://repo.spongepowered.org/repository/maven-public/" } // Sponge
         maven { url = "https://oss.sonatype.org/content/repositories/snapshots" } // BungeeCord
-        maven { url = "https://repo.md-5.net/content/repositories/snapshots/" } // RedisBungee
         maven { url = "https://repo.velocitypowered.com/snapshots/" } // Velocity
         maven { url = "https://repo.playeranalytics.net/releases" } // Plan
+        maven { url = "https://repo.md-5.net/content/repositories/snapshots/" } // RedisBungee
+        maven { url = "https://jitpack.io" } // RedisBungee fork
     }
 
     dependencies {

Plan/velocity/build.gradle

@@ -16,8 +16,10 @@ dependencies {
 
     compileOnly "com.velocitypowered:velocity-api:$velocityVersion"
     annotationProcessor "com.velocitypowered:velocity-api:$velocityVersion"
+    compileOnly "com.github.ProxioDev.RedisBungee:RedisBungee-API:$redisBungeeProxioDevVersion"
 
     testImplementation "com.velocitypowered:velocity-api:$velocityVersion"
+    testImplementation "com.github.ProxioDev.RedisBungee:RedisBungee-API:$redisBungeeProxioDevVersion"
     testImplementation project(path: ":common", configuration: 'testArtifacts')
 }
 

Plan/velocity/src/main/java/com/djrapitops/plan/PlanVelocity.java

@@ -57,7 +57,8 @@ import java.util.logging.Level;
         version = "@version@",
         description = "Player Analytics Plugin by AuroraLS3",
         dependencies = {
-                @Dependency(id = "viaversion", optional = true)
+                @Dependency(id = "viaversion", optional = true),
+                @Dependency(id = "redisbungee", optional = true)
         },
         authors = {"AuroraLS3"}
 )

Plan/velocity/src/main/java/com/djrapitops/plan/gathering/VelocitySensor.java

@@ -17,6 +17,8 @@
 package com.djrapitops.plan.gathering;
 
 import com.djrapitops.plan.PlanVelocity;
+import com.djrapitops.plan.identification.properties.VelocityRedisCheck;
+import com.djrapitops.plan.identification.properties.VelocityRedisPlayersOnlineSupplier;
 
 import javax.inject.Inject;
 import javax.inject.Singleton;
@@ -29,7 +31,9 @@ public class VelocitySensor implements ServerSensor<Object> {
 
     @Inject
     public VelocitySensor(PlanVelocity plugin) {
-        onlinePlayerCountSupplier = plugin.getProxy()::getPlayerCount;
+        onlinePlayerCountSupplier = VelocityRedisCheck.isClassAvailable()
+                ? new VelocityRedisPlayersOnlineSupplier()
+                : plugin.getProxy()::getPlayerCount;
     }
 
     @Override

Plan/velocity/src/main/java/com/djrapitops/plan/identification/properties/VelocityRedisCheck.java

@@ -0,0 +1,39 @@
+/*
+ *  This file is part of Player Analytics (Plan).
+ *
+ *  Plan is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License v3 as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Plan is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with Plan. If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.djrapitops.plan.identification.properties;
+
+/**
+ * Utility class for checking if RedisBungee API is available.
+ *
+ * @author AuroraLS3
+ */
+public class VelocityRedisCheck {
+
+    private VelocityRedisCheck() {
+        /* Static method class */
+    }
+
+    public static boolean isClassAvailable() {
+        try {
+            Class.forName("com.imaginarycode.minecraft.redisbungee.RedisBungeeAPI");
+            return true;
+        } catch (ClassNotFoundException e) {
+            return false;
+        }
+    }
+
+}

Plan/velocity/src/main/java/com/djrapitops/plan/identification/properties/VelocityRedisPlayersOnlineSupplier.java

@@ -0,0 +1,39 @@
+/*
+ *  This file is part of Player Analytics (Plan).
+ *
+ *  Plan is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License v3 as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Plan is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with Plan. If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.djrapitops.plan.identification.properties;
+
+import com.imaginarycode.minecraft.redisbungee.RedisBungeeAPI;
+
+import java.util.function.IntSupplier;
+
+/**
+ * Players online supplier when using RedisBungee.
+ *
+ * @author AuroraLS3
+ */
+public class VelocityRedisPlayersOnlineSupplier implements IntSupplier {
+
+    @Override
+    public int getAsInt() {
+        RedisBungeeAPI api = RedisBungeeAPI.getRedisBungeeApi();
+        try {
+            return api != null ? api.getPlayerCount() : -1;
+        } catch (NullPointerException e) {
+            return -1;
+        }
+    }
+}